【摘要】 依据随机平方相位耦合信号三阶累积量不为零的特点,提出了从高斯噪声环境中恢复平方相位耦合信号的基于三阶累积量对角切片的直接自适应谱线增强算法。该算法恢复平方相位耦合信号、抑制高斯噪声的性能优于传统的自适应谱线增强算法。仿真结果证实了这种算法的有效性。更多还原

【Abstract】 We have developed the TOCDSBDALE(third-order cumulant diagonal slice-based direct adaptive line enhancement )algorithm based on the feature that the third-order cumulant of the random square phase coupling signal is nonzero.This proposed algorithm is especially fit for retrieving square phase coupling signal in Gaussian noise,and its performance of enhancing square phase coupling signal or holding Gaussian noise is better than that of the traditional ALE(adaptive line enhancement )algo-rithm.This performance is verified via computer sim ulation.[更多还原